Ask tactical shooters to describe the perfect optic, and they'll say "smaller, faster, lighter". Those are the perfect words to describe the Leupold Mark 6. Setting a new standard for high performance in a compact scope, the Mark 6 offers state of the art features that help you make the toughest shots. The Extended Twilight lens system lets your hunt reach further into twilight than ever before possible, and a powerful 6:1 zoom ratio delivers crystal clear images from edge to edge. The low profile M5C2 ZeroLock elevation dial automatically locks at the zero position and provides 20 mils of elevation travel in two revolutions of the dial. You get visible and tactile indication of the dial position in any lighting conditions.